The app, which Tesco describes as "basic" (isn't that Sainsbury's tag?) lets existing Tesco online customers browse items, check out the nutritional gubbins and add things to their shopping basket. It's not the exciting real world AR experience you might be imagining.

It's, therefore, about the most pointless use of Glass we've heard of yet and, despite being about 18 months late to the party, the miscounting retail giant, is pretty excited. Or a bit excited. Actually it seems like it's a bit nonplussed according to Pablo Coberly, innovation Engineer at Tesco Labs.